Broadcast Blunder: Electrolink Transmitters’ Security Flaws Exposed!

Electrolink’s transmitters have more holes than Swiss cheese, with vulnerabilities that could let hackers tune into more than just radio waves. Time to patch up or face the static!

Hot Take:

Oh, Electrolink, you’re broadcasting vulnerabilities louder than a rush-hour traffic report! It seems like attackers need just a pinch of ingenuity and a sprinkle of malice to turn your transmitters into pricey paperweights or, worse, their own personal broadcast stations. Let’s tune into this frequency of failure, shall we?

Key Points:

  • Electrolink’s FM/DAB/TV Transmitters are about as secure as a diary with a “Keep Out” sticker—vulnerabilities galore!
  • Attackers can go full Mission Impossible and bypass authentication by fiddling with cookies or, in layman’s terms, crumble the very foundations of security.
  • Privilege escalation is on the table, turning your everyday guest user into the admin Electrolink never wanted.
  • Unprotected endpoints are like open mic nights for hackers, and oh boy, do they have some code to perform.
  • Electrolink’s response to these vulnerabilities seems to be playing hide and seek. Spoiler: They’re really good at hiding.
Title: Electrolink FM/DAB/TV Transmitter Authentication Bypass by Assumed-Immutable Data
Cve id: CVE-2024-3741
Cve state: PUBLISHED
Cve assigner short name: icscert
Cve date updated: 04/18/2024
Cve description: Electrolink transmitters are vulnerable to an authentication bypass vulnerability affecting the login cookie. An attacker can set an arbitrary value except 'NO' to the login cookie and have full system access.

Title: Electrolink FM/DAB/TV Transmitter Reliance on Cookies without Validation and Integrity Checking
Cve id: CVE-2024-21872
Cve state: PUBLISHED
Cve assigner short name: icscert
Cve date updated: 04/18/2024
Cve description: The device allows an unauthenticated attacker to bypass authentication and modify the cookie to reveal hidden pages that allows more critical operations to the transmitter.

Title: Electrolink FM/DAB/TV Transmitter Authentication Bypass by Assumed-Immutable Data
Cve id: CVE-2024-22179
Cve state: PUBLISHED
Cve assigner short name: icscert
Cve date updated: 04/18/2024
Cve description: The application is vulnerable to an unauthenticated parameter manipulation that allows an attacker to set the credentials to blank giving her access to the admin panel. Also vulnerable to account takeover and arbitrary password change.

Title: Electrolink FM/DAB/TV Transmitter Cleartext Storage of Sensitive Information
Cve id: CVE-2024-3742
Cve state: PUBLISHED
Cve assigner short name: icscert
Cve date updated: 04/18/2024
Cve description: Electrolink transmitters store credentials in clear-text. Use of these credentials could allow an attacker to access the system.

Title: Electrolink FM/DAB/TV Transmitter Missing Authentication for Critical Function
Cve id: CVE-2024-1491
Cve state: PUBLISHED
Cve assigner short name: icscert
Cve date updated: 04/18/2024
Cve description: The devices allow access to an unprotected endpoint that allows MPFS file system binary image upload without authentication. The MPFS2 file system module provides a light-weight read-only file system that can be stored in external EEPROM, external serial flash, or internal flash program memory. This file system serves as the basis for the HTTP2 web server module, but is also used by the SNMP module and is available to other applications that require basic read-only storage capabilities. This can be exploited to overwrite the flash program memory that holds the web server's main interfaces and execute arbitrary code.

Title: Electrolink FM/DAB/TV Transmitter Missing Authentication for Critical Function
Cve id: CVE-2024-21846
Cve state: PUBLISHED
Cve assigner short name: icscert
Cve date updated: 04/18/2024
Cve description: An unauthenticated attacker can reset the board and stop transmitter operations by sending a specially-crafted GET request to the command.cgi gateway, resulting in a denial-of-service scenario.

Title: Electrolink FM/DAB/TV Transmitter Reliance on Cookies without Validation and Integrity Checking
Cve id: CVE-2024-22186
Cve state: PUBLISHED
Cve assigner short name: icscert
Cve date updated: 04/18/2024
Cve description: The application suffers from a privilege escalation vulnerability. An attacker logged in as guest can escalate his privileges by poisoning the cookie to become administrator.

Need to know more?

Transmitters Transmitting Trouble

Electrolink's plethora of transmitters have decided to roll out the red carpet for attackers worldwide. We're talking a full VIP experience—no authentication needed, just walk right in! With a CVSS v3.8 score, this party is rated 'dangerously fun' for any cybercriminal on the prowl.

Cookie Monster Chaos

These transmitters must have taken inspiration from a certain blue, cookie-obsessed Muppet, because they sure don't know how to handle their cookies. Set a cookie value to anything other than "NO," and boom—you're in. Seems like 'yes' is not in their vocabulary.

A Privilege to Escalate

If you've ever dreamed of climbing the social ladder with the ease of a guest account becoming an admin, Electrolink is your genie. Just a little cookie poisoning, and you're at the top, no ladder needed. Who knew privilege escalation was just a dessert away?

Unprotected Endpoints: Hackers Welcome!

Unprotected endpoints are like leaving your diary out with a neon sign saying "Read me!" Hackers can upload a file system binary image without so much as a "How do you do?" and potentially execute arbitrary code. It's like handing over the keys to your digital kingdom because someone asked nicely—or not at all.

Playing Hard to Get

When it comes to mitigating these vulnerabilities, Electrolink is playing the silent game, perhaps too well. CISA's knocking on the door, but it seems like Electrolink is out for a long walk, leaving users to fend for themselves with a list of recommendations that scream "Do it yourself!"

DIY Cybersecurity

Users are left to channel their inner MacGyver to protect themselves. The advice ranges from 'keep it off the internet' to 'hide it behind a firewall and maybe use a VPN'. It's like saying, "To avoid getting wet in the rain, stay inside or maybe use an umbrella—but we haven't checked if the umbrella has holes."

With no known public exploits yet, there's a sigh of relief. But in the world of cybersecurity, it's a race against time, and currently, Electrolink is tying its shoelaces while everyone else is halfway down the track.

Tags: authentication bypass, critical infrastructure security, CVSS Scoring, denial of service, Electrolink transmitters, privilege escalation, Vulnerability Assessment